diff --git a/build-scripts/config_common.cmake b/build-scripts/config_common.cmake
index d89c3a285..61e2473b1 100644
--- a/build-scripts/config_common.cmake
+++ b/build-scripts/config_common.cmake
@@ -146,7 +146,7 @@ include (${WAMR_ROOT_DIR}/build-scripts/package.cmake)
 # Sanitizers
 
 if (NOT DEFINED WAMR_BUILD_SANITIZER)
-  set(WAMR_BUILD_SANITIZER $ENV{WAMR_BUILD_SANITIZER})
+  set(WAMR_BUILD_SANITIZER "$ENV{WAMR_BUILD_SANITIZER}")
 endif()
 
 if (NOT WAMR_BUILD_SANITIZER STREQUAL "")